Convertible crib



FIG. 1 is a perspective view of the convertible crib according to my invention; the vertical slats are not part of the claimed design and are shown in phantom, the bottom rail and legs of the headboard are also shown in phantom as not part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof; and,

FIG. 4 is a right side elevation view thereof; the left side and right side elevation views are mirror images of each other, and accordingly, the left side elevation is not shown.

The back of the headboard and underside of the crib are not shown as they are not part of the claimed design. 

The ornamental design for a convertible crib, as shown and described. 